Particle Size Distribution During Thermal Decomposition of the Wood Sample in Oxidizing and Inert Atmosphere

AUTHOR(S):

Ladislav Šnajdárek, Jirí Pospíšil, Ján Polácik

TITLE

Particle Size Distribution During Thermal Decomposition of the Wood Sample in Oxidizing and Inert Atmosphere

ABSTRACT

This paper presents a laboratory procedure that combines the thermogravimetric analysis during thermal decomposition of wood sample with detailed monitoring of the size distribution of fine particles produced. Thermogravimetric analysis (TGA) allows monitoring the exact temperature influence of a small fuel sample (wood) according to the desired schedule. TGA also influences the composition of the atmosphere flowing around the sample. Two types of atmosphere on the thermal decomposition of wood sample were compared: oxidizing (21% O2) and inert (100% N2). The cool aerosol stream leaving TGA enters a Scanning Mobility Particle Sizer (SMPS) where the particle size fractions are separated. A number of particles in the particles size fractions are identified by the condensation particle counter (CPC). The parametrical study was carried out to assess the influence of oxidizing and inert atmosphere and thermal decomposition of the wood on the production and size distribution of ultrafine particles.

KEYWORDS

Particulate matter, size distribution, fine particles, combustion process

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Cite this paper

Ladislav Šnajdárek, Jirí Pospíšil, Ján Polácik. (2017) Particle Size Distribution During Thermal Decomposition of the Wood Sample in Oxidizing and Inert Atmosphere. International Journal of Environmental Science, 2, 329-334